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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/hp300/config.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/m68k/hp300/config.c')
-rw-r--r-- | arch/m68k/hp300/config.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c new file mode 100644 index 000000000000..a0b854f3f94a --- /dev/null +++ b/arch/m68k/hp300/config.c @@ -0,0 +1,279 @@ +/* + * linux/arch/m68k/hp300/config.c + * + * Copyright (C) 1998 Philip Blundell <philb@gnu.org> + * + * This file contains the HP300-specific initialisation code. It gets + * called by setup.c. + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/console.h> + +#include <asm/bootinfo.h> +#include <asm/machdep.h> +#include <asm/blinken.h> +#include <asm/io.h> /* readb() and writeb() */ +#include <asm/hp300hw.h> +#include <asm/rtc.h> + +#include "ints.h" +#include "time.h" + +unsigned long hp300_model; +unsigned long hp300_uart_scode = -1; +unsigned char ledstate; + +static char s_hp330[] __initdata = "330"; +static char s_hp340[] __initdata = "340"; +static char s_hp345[] __initdata = "345"; +static char s_hp360[] __initdata = "360"; +static char s_hp370[] __initdata = "370"; +static char s_hp375[] __initdata = "375"; +static char s_hp380[] __initdata = "380"; +static char s_hp385[] __initdata = "385"; +static char s_hp400[] __initdata = "400"; +static char s_hp425t[] __initdata = "425t"; +static char s_hp425s[] __initdata = "425s"; +static char s_hp425e[] __initdata = "425e"; +static char s_hp433t[] __initdata = "433t"; +static char s_hp433s[] __initdata = "433s"; +static char *hp300_models[] __initdata = { + [HP_320] = NULL, + [HP_330] = s_hp330, + [HP_340] = s_hp340, + [HP_345] = s_hp345, + [HP_350] = NULL, + [HP_360] = s_hp360, + [HP_370] = s_hp370, + [HP_375] = s_hp375, + [HP_380] = s_hp380, + [HP_385] = s_hp385, + [HP_400] = s_hp400, + [HP_425T] = s_hp425t, + [HP_425S] = s_hp425s, + [HP_425E] = s_hp425e, + [HP_433T] = s_hp433t, + [HP_433S] = s_hp433s, +}; + +static char hp300_model_name[13] = "HP9000/"; + +extern void hp300_reset(void); +extern irqreturn_t (*hp300_default_handler[])(int, void *, struct pt_regs *); +extern int show_hp300_interrupts(struct seq_file *, void *); +#ifdef CONFIG_SERIAL_8250_CONSOLE +extern int hp300_setup_serial_console(void) __init; +#endif + +int __init hp300_parse_bootinfo(const struct bi_record *record) +{ + int unknown = 0; + const unsigned long *data = record->data; + + switch (record->tag) { + case BI_HP300_MODEL: + hp300_model = *data; + break; + + case BI_HP300_UART_SCODE: + hp300_uart_scode = *data; + break; + + case BI_HP300_UART_ADDR: + /* serial port address: ignored here */ + break; + + default: + unknown = 1; + } + + return unknown; +} + +#ifdef CONFIG_HEARTBEAT +static void hp300_pulse(int x) +{ + if (x) + blinken_leds(0x10, 0); + else + blinken_leds(0, 0x10); +} +#endif + +static void hp300_get_model(char *model) +{ + strcpy(model, hp300_model_name); +} + +#define RTCBASE 0xf0420000 +#define RTC_DATA 0x1 +#define RTC_CMD 0x3 + +#define RTC_BUSY 0x02 +#define RTC_DATA_RDY 0x01 + +#define rtc_busy() (in_8(RTCBASE + RTC_CMD) & RTC_BUSY) +#define rtc_data_available() (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY) +#define rtc_status() (in_8(RTCBASE + RTC_CMD)) +#define rtc_command(x) out_8(RTCBASE + RTC_CMD, (x)) +#define rtc_read_data() (in_8(RTCBASE + RTC_DATA)) +#define rtc_write_data(x) out_8(RTCBASE + RTC_DATA, (x)) + +#define RTC_SETREG 0xe0 +#define RTC_WRITEREG 0xc2 +#define RTC_READREG 0xc3 + +#define RTC_REG_SEC2 0 +#define RTC_REG_SEC1 1 +#define RTC_REG_MIN2 2 +#define RTC_REG_MIN1 3 +#define RTC_REG_HOUR2 4 +#define RTC_REG_HOUR1 5 +#define RTC_REG_WDAY 6 +#define RTC_REG_DAY2 7 +#define RTC_REG_DAY1 8 +#define RTC_REG_MON2 9 +#define RTC_REG_MON1 10 +#define RTC_REG_YEAR2 11 +#define RTC_REG_YEAR1 12 + +#define RTC_HOUR1_24HMODE 0x8 + +#define RTC_STAT_MASK 0xf0 +#define RTC_STAT_RDY 0x40 + +static inline unsigned char hp300_rtc_read(unsigned char reg) +{ + unsigned char s, ret; + unsigned long flags; + + local_irq_save(flags); + + while (rtc_busy()); + rtc_command(RTC_SETREG); + while (rtc_busy()); + rtc_write_data(reg); + while (rtc_busy()); + rtc_command(RTC_READREG); + + do { + while (!rtc_data_available()); + s = rtc_status(); + ret = rtc_read_data(); + } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY); + + local_irq_restore(flags); + + return ret; +} + +static inline unsigned char hp300_rtc_write(unsigned char reg, + unsigned char val) +{ + unsigned char s, ret; + unsigned long flags; + + local_irq_save(flags); + + while (rtc_busy()); + rtc_command(RTC_SETREG); + while (rtc_busy()); + rtc_write_data((val << 4) | reg); + while (rtc_busy()); + rtc_command(RTC_WRITEREG); + while (rtc_busy()); + rtc_command(RTC_READREG); + + do { + while (!rtc_data_available()); + s = rtc_status(); + ret = rtc_read_data(); + } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY); + + local_irq_restore(flags); + + return ret; +} + +static int hp300_hwclk(int op, struct rtc_time *t) +{ + if (!op) { /* read */ + t->tm_sec = hp300_rtc_read(RTC_REG_SEC1) * 10 + + hp300_rtc_read(RTC_REG_SEC2); + t->tm_min = hp300_rtc_read(RTC_REG_MIN1) * 10 + + hp300_rtc_read(RTC_REG_MIN2); + t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 + + hp300_rtc_read(RTC_REG_HOUR2); + t->tm_wday = -1; + t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 + + hp300_rtc_read(RTC_REG_DAY2); + t->tm_mon = hp300_rtc_read(RTC_REG_MON1) * 10 + + hp300_rtc_read(RTC_REG_MON2) - 1; + t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 + + hp300_rtc_read(RTC_REG_YEAR2); + if (t->tm_year <= 69) + t->tm_year += 100; + } else { + hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10); + hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10); + hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10); + hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10); + hp300_rtc_write(RTC_REG_HOUR1, + ((t->tm_hour / 10) & 3) | RTC_HOUR1_24HMODE); + hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10); + hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10); + hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10); + hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10); + hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10); + if (t->tm_year >= 100) + t->tm_year -= 100; + hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10); + hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10); + } + + return 0; +} + +static unsigned int hp300_get_ss(void) +{ + return hp300_rtc_read(RTC_REG_SEC1) * 10 + + hp300_rtc_read(RTC_REG_SEC2); +} + +void __init config_hp300(void) +{ + mach_sched_init = hp300_sched_init; + mach_init_IRQ = hp300_init_IRQ; + mach_request_irq = hp300_request_irq; + mach_free_irq = hp300_free_irq; + mach_get_model = hp300_get_model; + mach_get_irq_list = show_hp300_interrupts; + mach_gettimeoffset = hp300_gettimeoffset; + mach_default_handler = &hp300_default_handler; + mach_hwclk = hp300_hwclk; + mach_get_ss = hp300_get_ss; + mach_reset = hp300_reset; +#ifdef CONFIG_HEARTBEAT + mach_heartbeat = hp300_pulse; +#endif +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + mach_max_dma_address = 0xffffffff; + + if (hp300_model >= HP_330 && hp300_model <= HP_433S && hp300_model != HP_350) { + printk(KERN_INFO "Detected HP9000 model %s\n", hp300_models[hp300_model-HP_320]); + strcat(hp300_model_name, hp300_models[hp300_model-HP_320]); + } + else { + panic("Unknown HP9000 Model"); + } +#ifdef CONFIG_SERIAL_8250_CONSOLE + hp300_setup_serial_console(); +#endif +} |